Date: Mon, 5 May 2025 20:55:15 +0200 From: Christos Margiolis <christos@freebsd.org> To: Goran =?utf-8?B?TWVracSH?= <meka@tilda.center> Cc: freebsd-multimedia@freebsd.org Subject: Re: Memory mapped OSS device Message-ID: <qwfryatrkxslcu74cgg7vuqax2khpnuyma5uuglbebhdqqhu4x@q6cpoucfkett> In-Reply-To: <f2e2bef2-2a45-4e70-894f-ad287f29ac37@tilda.center>
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Hello again Meka, Goran Mekić wrote: > Hello, > > I am trying to learn about mmap mode of OSS and so far I have this: https://github.com/mekanix/freebsd-src/blob/audio-mmap/share/examples/sound/oss/audio.c. > So the device is initialized properly and my code doesn't break trying to > write something past the length of the buffer, but I do get strange sound. I > am using http://manuals.opensound.com/developer/mmap_test.c.html as > reference and the difference that I implemented is that I'm trying to > "guess" how long I have to sleep so that when I wake up (and maybe wait a > little bit more), I can write the whole buffer. If anybody knows what I'm > doing wrong here, please help me. Pulseaudio seems to be doing mmap, so you could get some inspiration from there as well: https://github.com/pulseaudio/pulseaudio/tree/master/src/modules/oss Christoshelp
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